EPA Method 525 Surrogate Standard Back Catalog number: 93971 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673332 Isoproturon, 10.0 µg/ml, Acetonitrile, 10ml Price on request 8940.10-1G Sebacic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 111-20-6 Price on request 31241 EPA Method 531.1 Individual Analytes Price on request